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Dynamic identification and seismic safety of masonry bell towers

  • The paper addresses two case studies of structural monitoring and seismic assessment of medieval masonry Towers in Italy: the bell tower of Aversa and the bell tower of Capua. These monuments in the Campania region were monitored by means of full-scale environmental vibration testing. Measured responses were then used for modal identification. The procedure is based on a typical finite element model updating technique based on vibration test results. Parameters optimization is carried out by minimizing a weighted error criterion relative to the building’s modal properties. A satisfactory improvement on modal parameters is thus obtained, resulting in a close Agreement between the modal properties observed in dynamic tests and those calculated from numerical model. Seismic assessment is carried out with nonlinear static analysis of the tower under multimodal distributions of lateral loads. Nonlinear analysis indicates the potential collapse mechanisms and evidences dangerous structuralThe paper addresses two case studies of structural monitoring and seismic assessment of medieval masonry Towers in Italy: the bell tower of Aversa and the bell tower of Capua. These monuments in the Campania region were monitored by means of full-scale environmental vibration testing. Measured responses were then used for modal identification. The procedure is based on a typical finite element model updating technique based on vibration test results. Parameters optimization is carried out by minimizing a weighted error criterion relative to the building’s modal properties. A satisfactory improvement on modal parameters is thus obtained, resulting in a close Agreement between the modal properties observed in dynamic tests and those calculated from numerical model. Seismic assessment is carried out with nonlinear static analysis of the tower under multimodal distributions of lateral loads. Nonlinear analysis indicates the potential collapse mechanisms and evidences dangerous structural weakness which may play a role in the seismic vulnerability of the towers.zeige mehrzeige weniger

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Metadaten
Autor*innen:M. Ferraioli, A. Mandara, D. Abruzzese, Lorenzo Miccoli
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):14th Conference of seismic engineering ANIDIS
Jahr der Erstveröffentlichung:2011
Herausgeber (Institution):Politecnico di Bari
Ausgabe/Heft:Abschnitt E
Erste Seite:1
Letzte Seite:10
Freie Schlagwörter:Masonry towers; Model updating; Structural identification
Veranstaltung:14th Conference of seismic engineering ANIDIS
Veranstaltungsort:Bari, Italy
Beginndatum der Veranstaltung:18.09.2011
Enddatum der Veranstaltung:22.09.2011
ISBN:978-88-7522-040-2
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:19.02.2016
Referierte Publikation:Nein
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